Makefile: Separate linux and darwin binaries...
Makefile: Separate linux and darwin binaries...

- Also puts docs in own doc/ directory.
- Eliminates two levels of dir hierarchy in archive.
- Tested with gnu tar 1.29

samsalisbury/sous,samsalisbury/sous,opentable/sous,samsalisbury/sous,samsalisbury/sous,opentable/sous,opentable/sous,samsalisbury/sous,opentable/sous,opentable/sous